Effect of dissociation energy on ion formation and sensitivity of an analytical method for determination of chlorpyrifos in human blood, using gas chromatography–mass spectrometer (GC–MS in MS/MS)

2006 ◽  
Vol 253 (1-2) ◽  
pp. 48-57 ◽  
Author(s):  
Sukesh Narayan Sinha ◽  
Ramavati Pal ◽  
Aruna Dewan ◽  
M.M. Mansuri ◽  
H.N. Saiyed
Keyword(s):  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Dissociation Energy ◽  
Human Blood ◽  
Analytical Method ◽  
Ion Formation

Trace determination of acaricides in honey samples using XAD-2 adsorbent and gas chromatography coupled with an ion trap mass spectrometer detector

RSC Advances ◽  
2014 ◽  
Vol 4 (80) ◽  
pp. 42424-42431 ◽  
Author(s):  
Ivan Notardonato ◽  
Pasquale Avino ◽  
Giuseppe Cinelli ◽  
Mario Vincenzo Russo
Keyword(s):  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Ion Trap ◽  
Trace Determination ◽  
Ion Trap Mass Spectrometer

Gas Chromatographic Determination of Primary and Secondary Amines as Pentafluorobenzamide Derivatives

1982 ◽  
Vol 65 (5) ◽  
pp. 1066-1072
Author(s):  
Brian D Ripley ◽  
Bruce J French ◽  
Lloyd V Edgington
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Analytical Method ◽  
Chromatographic Determination ◽  
Sample Volume ◽  
Secondary Amines ◽  
Primary And Secondary Amines

Abstract An analytical method is described for the determination of mono- and dialkylamines in foodstuffs. Amines are derivatized to their pentafluorobenzamides which may be separated by gas chromatography (GC) and determined using an N-P detector. Analysis of the derivatives by GC-mass spectrometry indicated they were all mono-substituted. The amines were isolated from foodstuffs by alkaline distillation of ≥75% sample volume. The distribution of dimethylamine (DMA) in distillate volumes indicated 2 maxima from barley and malt, which could represent 2 or more sources of DMA. DMA concentrations of 6.6-8.8 ppm in barley, 11 ppm in malt, and 1.2 ppm in beer are higher than previously reported.

Determination of the Herbicide Tordon (4-Amino-3,5,6- trichloropicolinic Acid) in Soil by Electron Capture Gas Chromatography

1967 ◽  
Vol 50 (3) ◽  
pp. 637-641
Author(s):  
J G Saha ◽  
L A Gadallah
Keyword(s):  
Gas Chromatography ◽  
Methyl Ester ◽  
Phosphoric Acid ◽  
Electron Capture ◽  
Analytical Method ◽  
Free Acid ◽  
Soil Samples ◽  
Minimum Amount

Abstract A method is presented for determining the herbicide tordon (4-amino-3,5,6-trichIoropicolinic acid) in soil. It involves extraction of tordon as the free acid with acetone and phosphoric acid, followed by esterification with diazomethane and estimation of the methyl ester by electron capture gas chromatography. Recoveries of tordon added to soil samples at 0.05—1.0 ppm were between 83 and 92%. The minimum amount detectable by this method was 0.01 ppm. The difficulties of developing an analytical method for this compound are discussed in the light of its structure and solubility

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